Weather strip



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JOSEPH C. DUNK-1AM, 01S OKLAHOMA, OKLAHOMA.

WEATHER $TRIP.

isses.

Application filed July '12,

T 0 all whom it may concern:

Be it known that l, Josnrrr C. DUNHAM, a citizen of the United Flt-atesand a resident (.liltllOHlit city, in the county of Oklahoma and Stateof Qklahonia, have invented certain improvements in Weather Strips, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention relates to weather strips of that general character inwhich a resilient sheet metal strip is employed and adapted to beinterposed between the edge or the door and the jainb and adapted to hetensione-d by the closing of the door.

The object of the invention is to provide means to prevent passage of.air between a door and jainb.

Referring to the accompanying; drawings.

whicl Figure l is an elevation view of a door and door frame on whichthe improved weather-strip is installed.

Figure 2 is an enlarged sectional view taken on the line 2-2 of Figure1.

Figure 3 is a reproduction of a portion of Figure 2. but with the doorslightly open.

Figure is a reproduction of the same portion of Figure 2, with the doora little further open.

Figure 5 is a perspective view of a small portion of the improvedweather-strip.

In Figures 2 to i the weather-strip is shaded in solid black and isshown of exaggerated thickness.

Like characters of reference designate like parts in all the figures.

The door and frame shown in this instance include the outer casing 10the 'jainb ii. the inner casing 12, and the door 13; the janib beingrabbeted as at 14: to receive the door.

The improved weather-strip l5, hereinatter referred to as the strip, isof sheet metal, for example sheet brass of good spring quality.

In cross-section, that portion of the strip between the lines A-A andB-B (Figure Specification of Letters Patent.

Patented ltli'ay 192 1920. Serial No. 395,537.

is shaped as an arc of. circle and adaptto have its edges bear againstthe edge to lthe doorlggthe round back surface ot the strip restingagainst the "jzlfflb ll in the raobet The remaining portion of thecross-section ot the strip between the lines and C i] is also shaped asan arc of a circle. with a portion 1'? adapted to be fastened to thejamb 11 by nails 18.

The centers of curvature of both the curved sections of the strip areboth on the same side oi? the strip. it will be noted that one curveends at one edge in a peak 19. while the meeting ends oi? both curvesalso end in a common peak 20.

in closing the door 13, the strip 15, held at its outer edge by thenails 18. is wholly or partially straightened out in cross-section,thereby placing said strip under tension and torniing it into a packingbetween the door and janib.

The improved strip may be used between the meeting-rails of two sashes.or in any place where the surfaces. of: two relatively movable partsmeet each other with a slid- Eng contact or movement.

Qpring brass eight-thousandths of an inch thick is found to be suitablefor the strip.

The following is claimed A. compound-curved sheet metal weather stripformed in cross section into two arcshaped portions the edges of one oi?which are adapted to bear against the edge of a door with the curvedback of said portion hearing against the jainb in the rabbct thereof,the other portion being provided with an end portion for fastening tothe iamb, the centers of curvatures of both areshaped portions being onthe same side of the strip and the peaks of both curves engageable withthe edge of a door to be plare-d under tesion at separated points.

fitness my hand this 1 3 day oi lrlarr-h, 1920.

JOSEPH C. DUNHAM.

